Exercise 21-9 Contribution margin LO A2 A jeans maker is designing a new line of jeans called the slims. The jeans will sell for $340 per pair and cost $261.80 per pair in variable costs to make. (Round your answers to 2 decimal places.) (1) Compute the contribution margin per pair. Contribution margin (2) Compute the contribution margin ratio. Choose Numerator: Choose Denominator: Contribution margin ratio Contribution margin ratio